Here is one of mine... chart added
This year's EMC entry is very much the work of William Blair - my machinist at the shop. I have spent a lot of time these past few months taking care of non-FE issues. I gave Willie a recipe to follow, provided the parts required, and have done the dyno work. He did all the machining and assembly.
We are running in "Big Block Spec" class. This has a 470 cube maximum, and scores are from 3500-6500 RPM. They add up the average horsepower and the average torque to get the score - no cubic inch factor in this class. They mandate the use of a catalog Edelbrock head (no Pro Ports), a choice of two Edelbrock intakes, Comp hyd roller cam and lifters, MSD ignition with no digital stuff, and 11.5:1 compression. Valves must be the same guide diameter and head diameter as delivered by Edelbrock. Porting of heads and intake is allowed, but no welding or filler. Carb must be a four barrel with a maximum of 1.75 bores, and mount directly to the intake - no spacers. Headers and oil pan must be catalog parts for passenger car applications.
I am running a 468 - 4.250 bore and 4.125 stroke. Rods are 6.8, pistons are .020 out of the hole with .066 Cometic gaskets. This was not done as a "trick" - it was done because everything other than the block on the engine is either repurposed, or will be repurposed once we are finished. Its something of a scavenger hunt build.
So far the best carb is an 850 vacuum - a reissued piece from the early 90s when I was working at Holley. The pan is a C8AX Ford performance part from the late 60s. The Hooker headers are borrowed from Rod C, and fit a 63-64 Galaxie. Heads are 60059 castings, intake is a Performer RPM, Romac damper and one of Jay's timing covers. Rockers are T&D street, springs are Comp conical with titanium retainers so small they look like ball point pen parts to me.
Cam is a special from Comp with 106 centers installed right now at 101 - yeah it's a bit advanced.
Its a pretty strong running entry so far - I live two hours away from the contest site so I can still mess with it a bit. But because of the valve limits it will not be a player in the class. The FE has to run a 3/8 guide with 2.09 valves, the BBC gets 11/32 guides and 2.19 valves, the BBM gets 11/32 & 2.14 stuff. Puts me at +/- 20-25 cfm down on airflow from where I normally run. Scaling up Kaase's 2015 spec small block winner gets a 1160 score target. I am currently 60 light, and might find another 10 or 20 at best.
Still a cool piece - and look at the torque curve.
Not the best pull - but a good representative
Added a chart to better illustrate.
This thing does not really have a torque "curve" in the traditional sense...
